Wrench



June 24. 1924. 1,499,271

J. w. WARREN WRENCH Filed Feb. l2. 1923 www ao: n c 19 Patented .lune 24, 1.9245s JOHN WILLIS VJARREN, OF AKRON, OHIO, kASSIGNOR E\ONEFQURTH1TO`CSPER KAMMER, or

AKRON, oHIo.

WRENCH.

Application (aidnepruary 12,k reza` serial 110.7618312. I

To all whom t may genoemd' l Be it known that I JOHN WQWARREN, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in lVrenches, of which the following is a specific-ation.

This invention relates to wrenches `and more particularly to ratchet wrenches.

An object of the invention is the provision of a ratchet wrench having a movable jaw which is adjustable on a threaded stem or handle.

A further object is the provision of a wrench of this character, which is of simple and durable construction.

In the accompanying drawings, I have shown one embodiment of the invention. In this showing:

Figure 1 is a side elevation,

Figure 2 is a front elevation,

Figure 3 is a transverse sectional view on line 3-3 of Figure 1,

Figure 4f is a similar view on line 4 -4 of Figure 1, and, f

Figure 5 is a detail view of the movable aw. c Y J Referring to the drawings, thereference numeral 1 designates wrench which is provided with a suitable handle Q at its upper' end. A stationary jaw 8 is formed on the lower end of the shank.

The movable jaw comprises a substantiallyk U-shaped member 5, adapted to surround the shank of the wrench. This U-shaped member is provided with a `projecting lip or finger 6 at one end, adapted to be received in a groove 7, of an adjusting nut 8. The adjusting nut is provided with internal threads adapted to mesh with external threads 9 on the shank to permit longitudinal adjustment of the movable jaw. kThe U-shaped member 5 carries a pin 10 extending transversely7 and this pin serves as a support for the movable jaw. As shown, a movable jaw 11 is arranged between the sides of the U-shaped member and is provided with an elongated slot 12, for the reception of pin 10. The inner side of the jaw is provided with a shoulder 13, adapted to engage a ratchet tooth 14:. is arranged adjacent the rear end of the U-shaped member, a spring 16 which bears against the rear the shank of they A block 15 forming a support for endpf ,the movable jaw. Ting.rifonynya, Lend of the U`shaped member is provided 'with'a pair of ears 17 forming a support for a guide member 18 which engages the outer face of the movable jaw.

In operation, the movable jaw is adjusted along the shank of the wrench by revolving the adjusting nut 8; The U-shaped member 5 moves with the adjusting nut, due to the engagement of the yfinger 6 in groove 7 When the wrench has Vbeen adjusted'and is ready for use, the application of force toV the handle 2 to tighten a nut causes the forward end of the movable jaw to move inwardly toward-the shank, permitting the ratchet 14 to engage the tooth or shoulder 13, When the wrench is operated in a reverse direction, the forward yend of the movable jaw is swung outwardly disengag-v 'l from the ratchet tooth and permitting it to move rearwardly. Rearward movement of the jaw isy limited by the length of the slot 12. This rearward movement of the jaw permits the wrench to be turned in a reverse direction over the corners of a nut without engaging the' nut, whereby a new grip may be obtained vwithout removing the wrench froirn the nut. When the wrench isagain turned in the reverse direction, the forward end ofy the movable ing it yjaw moves inwardly to engage the ratchet' '14, and the spring 16 forces the jaw forwardly to insure such engagement.

It is to be understood that the form of my invention herewith shown vand described is to be taken as a preferred example of the same, and 'that various changes in the shape,

size, and arrangement of parts may be .resorted to without departing from the spirit `of the invention or the scope of the subjoined claims. y j

Having thus described my invention, I claim:

1. A ratchet wrench comprising a shank, a fixed jaw carried by said shank, a sup-` porting member embracing said shank ad-v justably mounted thereon, a pin carried by said supporting member remote from said shank, a movable jaw having an elongated slot adapted to receive said pin to permit limited movement of said jaw with respect to said supporting member, said jaw being provided with a ratchet tooth on its inner face,

and a locking dog carried by said*y limited movement of said jaw With respect supporting member to engage said tooth and retain said movable jaw in operative position. f

2. A ratchet Wrench comprising a shank, a fixed jaw earriedby said shank, a snp- `porting member embracing said shankadjustably mounted thereon, a pin carried by said supporting member remote from said Y shank, a movable jaw havingan elongated slot adapted to receive said pin to permit tdsaid supporting member, said jaw being provided with a ratchet tooth on its inner face, a locking dog engaging said tooth, and

a spring carried by said supporting member 15 

